Title page for etd-0810113-114807


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URN etd-0810113-114807
Author Kai-Wei Huang
Author's Email Address No Public.
Statistics This thesis had been viewed 5340 times. Download 270 times.
Department Materials and Optoelectronic Science
Year 2013
Semester 1
Degree Ph.D.
Type of Document
Language English
Title Molecular Structure Design and Multiple Hydrogen bonding Interactions to Prepare Polyhedral Oligomeric Silsesquioxanes Nanocomposites and DNA-like Double-Helical Structures
Date of Defense 2013-09-04
Page Count 246
Keyword
  • hydrogen bonding interactions
  • polyhedral oligomeric silsesquioxanes (POSS)
  • nanocomposites
  • carbon nanotubes
  • helical structures
  • Abstract After decades of nanocomposites evolution, to way of achieving reinforcing effect from the physical blends to covalent bonding blends. In the study, we design molecular structure and multiple hydrogen bonding interactions to prepare polyhedral oligomeric silsesquioxanes (POSS) nanocomposites and DNA-like double-helical structures. Firstly, our use different organic functional groups on POSS as a reinforcing material to study the effects of thermal stability, mechanical properties and dispersion on organic-inorganic nanocomposites during the molecular structure and hydrogen bonding. Later, enhancing the thermal stability of nanocomposites significantly and obtain the self-assembly of lamellar structures through the DNA into the system with complementary multiple hydrogen bonding interactions between the thymine (T) and adenine (A). In addition, our also used DNA hydrogen bonding characteristics to synthesize high-heteronucleobase-content polystyrene supramolecular structure; the thermal properties and dynamic rheology increased significantly when it is blended with low molecular weight compound (melamine, M) because of the strong, complementary, and multiple hydrogen-bonding interactions. Finally, our used the achiral random-coil polystyrene (PS) main chains, stabilized through the combination of multiple A–T hydrogen bonds and π–π stacking between pyrene units and single-walled carbon nanotubes (SWCNTs) to prepare with similar DNA double-helical structures.
    Advisory Committee
  • Feng-Chih Chang - chair
  • Ching-Hsuan Lin - co-chair
  • Chih-Feng Wang - co-chair
  • Yeo-Wan Chiang - co-chair
  • Ming Chen - co-chair
  • Shiao-Wei Kuo - advisor
  • Files
  • etd-0810113-114807.pdf
  • Indicate in-campus at 2 year and off-campus access at 2 year.
    Date of Submission 2013-09-10

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